The Department of Defense, specifically the U.S. Army Contracting Command - Orlando, is issuing a Sources Sought Notice for the Time-Space-Position Optical Tracking (T-SPOT) project, aimed at identifying potential sources for a technology study and trade space analysis. The primary objective is to develop a system architecture and concept of operations for a non-GNSS-based Time-Space-Position Information (TSPI) truth sensor that can operate effectively in environments where GNSS is denied, thereby enhancing the testing of advanced navigation systems. This initiative is crucial due to the increasing reliance on GNSS navigation systems and the corresponding threats posed by adversaries who seek to jam or spoof these systems. Interested parties must submit a capability statement by 4:00 p.m. EST on February 20, 2026, to the designated contacts, including Peter Jorg and John Mosby, with no funds available for response preparation.